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Top 100 Manufacturers of 2014: $30 Million to $40 Million

Air Master Windows & Doors*

Product lines: Aluminum windows and doors; storefront, curtain wall and commercial products; impactresistant productsHeadquarters: Barceloneta, Puerto RicoEmployees: 457Website:www.airmasterpr.comGeneral information: Air Master is one of the largest suppliers of residential and commercial fenestration products to the Caribbean market. It currently operates a 250,000-square-foot plant housing 18 production lines, where it manufactures products ranging from entry-level windows and doors to high-end systems.

American Exteriors LLC

Product lines: Vinyl windows, doors and sidingHeadquarters: Littleton, Colo.Employees: 290Website:www.amext.comGeneral information: American Exteriors sells and installs windows, doors and siding in a 13-state area. Based in Littleton, Colo., where it produces windows, the company also has showrooms in Denver; Des Moines, Iowa; Kansas City and Wichita, Kan.; Minneapolis; Omaha, Neb.; Salt Lake City; Boise, Idaho; and Sioux Falls, S.D.

Lux Windows & Glass Ltd.

Product lines: Aluminum-clad, wood, and PVC windows and doorsHeadquarters: Calgary, Alberta, CanadaEmployees: 160Website:www.luxwindows.comGeneral information: Celebrating 45 years in business, Lux Windows is a family business that prides itself on combining cutting-edge technology with a commitment to craftsmanship. Operating out of a 100,000-square-foot lean manufacturing facility, the company seeks to provide renovators, builders, architects, designers and homeowners a complete line of window and door systems for commercial, new home construction and renovation projects. Lux was the Canadian Home Builders’ Association – Calgary Region winner of the Grand Sam Award for Partner of the Year in 2013.